What is the pall pall filter internal structure?

Pall pall filter is a kind of membrane as the core of high flow folding filter. After determine the membrane filter material, polypropylene non-woven fabric ( Network) Into the transfer layer and carrier. After the folding, insert it into the center pipe and installed in the shell. No plastic hot melt welding technology, fusion seal form a complete integrated filter element, no chemical pollutants, and the products are 100% integrity check. Multi-layer fold fold filter made of pure polypropylene filter material, the material comply with the provisions of the GMP and FDA. It USES the ultrasonic hot melt adhesive, do not use the glue. High flow pleating pall filter for double discount structure of polypropylene materials, the inner layer of filter layer, outer layer using a pore size of non-woven fabric as a coarse filter, has played a role in the process of the filter. The filtering effect. Internal stent and external stent made of pp or stainless steel. Material, so the filter is pre filter and filter combination.